Finding the Fourth Proportional to 86,734.32, 130,011.98 and 42,306.16

Step by Step Solution

1. Step 1: Write the proportion equation
   86,734.32 : 130,011.98 = 42,306.16 : x
2. Step 2: Convert to fraction form
   86,734.32/130,011.98 = 42,306.16/x
3. Step 3: Cross multiply
   86,734.32x = 130,011.98 × 42,306.16
4. Step 4: Simplify right side
   86,734.32x = 5,500,307,627.80
5. Step 5: Solve for x
   x = 5,500,307,627.80/86,734.32
6. Step 6: Final answer
   x = 63,415.58